Pi-Hole for home Wifi, Guest Wifi for IoT devices. For Desktop PC I use Linux, hardened Firefox, uBlock Origin extension. For the Phone I use NextDNS, work Profile for IoT apps, and F-Droid for some apps.

I’ve never used it but it is my understanding that it pretty much the same thing with more functionality.

The question doesn’t make sense. They are projects with different purposes. and what kind of potential you are asking? popularity, ease of use, mass market, etc?

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its the function called Antennas.